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Unformatted text preview: as a function of supply pressure and distance of the Festo SFL-100 air barrier © Festo Didactic GmbH & Co. KG • FP 1110 129 8. Pneumatic proximity sensors 8.7
Examples of application • Measuring the speed of transport of screens (plastic screens) for silk screen
printing. These screens are easily contaminated and optical proximity sensors
are therefore unsuitable. A possible solution is to provide holes at specified
intervals along the edge of the screens and to use pneumatic sensor nozzles for
• Monitoring of tools (e.g. checking for broken drill) in environments where for
instance optical proximity sensors are unsuitable because of contamination due
to oil or cooling agents.
• Checking holes after drilling operation.
• Testing ceramic plates for smoothness after burning. Fig. 8.7.1: Checking for broken drills by means of an air barrier By using an air barrier, it is possible to check that a drill is in position immediately
before drilling the workpiece.
If the drill is broken, the air jet from the se...
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This note was uploaded on 11/01/2012 for the course CHEMICAL 102 taught by Professor Jamesrodriguez during the Spring '12 term at Universidad Politécnica de Cartagena.
- Spring '12